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3 30 points) A company is researching the effectiveness of a new website design to decrease the time to access a website. Five website users were randomly selected and their times (in seconds) to access the website with the old and new designs were recorded. The results follow. User Old Website Design New Website Design 30 45 25 32 28 15 20 10 25 20 Let α 0.05. Is the mean time to access the new website design shorter, or is (time for the old design time for the new design) greater than zero? Express your answer in terms of the null hypothesis. a. What is the null hypothesis? b. What is the alternative hypothesis? c. State the decision rule. d. Compute the value of the test statistic. e. What is your decision regarding Ho?

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2.132 IS 20 10 s 20 Test statité: 왜!

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